Pleias
Pleias builds the data infrastructure layer for enterprise agentic AI, offering products like Synth, Common Corpus, and Stratum.
Last updated September 2, 2026
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Overview
Pleias is an AI company focused on data efficiency, building the data infrastructure layer for enterprise agentic AI. Its dual-product stack includes Stratum for AI-native enterprise data processing and Synth for synthetic data generation. It also curates Common Corpus, an open dataset for LLMs.
History
Pleias is described as a French-German AI Lab. Its mission is to increase data efficiency by a factor of 10^6. It builds the data infrastructure layer for enterprise agentic AI, with a dual-product stack of Stratum and Synth.
Products and positioning
Synth
Synthetic Data for AI agents. Simulates expert-level reasoning and domain-specific processes to generate training data. Runs entirely on-premise.
Common Corpus
Fully Open Data for AI. Curates and structures the world's largest rights-cleared and provenance-based dataset for LLMs.
Stratum
AI-Native Tooling for Agents. Turns messy siloed documents into a single, structured, compliant data asset for agentic AI workflows. Deployable fully on-premise.
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